With the total market for wearables to top 350M devices by 2020, it means millions of people have a personal device (on their wrist right now) that can help triage country-wide testing, and gather data on the virus.
Government and healthcare systems are exacerbated by the unforeseen global demand for COVID-19 testing. As top-down systems are working overtime to provide broad testing, bottom-up self-diagnosing and triaging have the potential to relieve stress and create efficiencies. And as scientists learn more about the virus and its associated symptoms, the information can be fed to wearable manufacturers/retailers (e.g. Apple, FitBit).
Wearables can then identify if the wearer has any COVID-19 related symptoms or if they need to go to a medical professional. At the same time, the population data can be fed to the scientific community to expedite the learnings on the virus.